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37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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typedef struct{
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uint8_t *data; // data buffer
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const int length; // its length
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int head; // head index
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int tail; // tail index
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volatile int busy; // == TRUE if buffer is busy now
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} ringbuffer;
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int RB_read(ringbuffer *b, uint8_t *s, int len);
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int RB_readto(ringbuffer *b, uint8_t byte, uint8_t *s, int len);
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int RB_hasbyte(ringbuffer *b, uint8_t byte);
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int RB_write(ringbuffer *b, const uint8_t *str, int l);
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int RB_datalen(ringbuffer *b);
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int RB_datalento(ringbuffer *b, uint8_t byte);
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int RB_clearbuf(ringbuffer *b);
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